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(Reference retrieved automatically from Web of Science through information on FAPESP grant and its corresponding number as mentioned in the publication by the authors.)

Challenging Postural Tasks Increase Asymmetry in Patients with Parkinson's Disease

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Author(s):
Beretta, Victor Spiandor [1] ; Bucken Gobbi, Lilian Teresa [1] ; Lirani-Silva, Ellen [1] ; Simieli, Lucas [1] ; Orcioli-Silva, Diego [1] ; Barbieri, Fabio Augusto [1, 2]
Total Authors: 6
Affiliation:
[1] Univ Estadual Paulista, UNESP, Posture & Gait Studies Lab, Dept Phys Educ, Biosci Inst, Sao Paulo - Brazil
[2] Univ Estadual Paulista, UNESP, Lab Informat Vis & Act, Dept Phys Educ, Fac Sci, Sao Paulo - Brazil
Total Affiliations: 2
Document type: Journal article
Source: PLoS One; v. 10, n. 9 SEP 14 2015.
Web of Science Citations: 7
Abstract

The unilateral predominance of Parkinson's disease (PD) symptoms suggests that balance control could be asymmetrical during static tasks. Although studies have shown that balance control asymmetries exist in patients with PD, these analyses were performed using only simple bipedal standing tasks. Challenging postural tasks, such as unipedal or tandem standing, could exacerbate balance control asymmetries. To address this, we studied the impact of challenging standing tasks on postural control asymmetry in patients with PD. Twenty patients with PD and twenty neurologically healthy individuals (control group) participated in this study. Participants performed three 30s trials for each postural task: bipedal, tandem adapted and unipedal standing. The center of pressure parameter was calculated for both limbs in each of these conditions, and the asymmetry between limbs was assessed using the symmetric index. A significant effect of condition was observed, with unipedal standing and tandem standing showing greater asymmetry than bipedal standing for the mediolateral root mean square (RMS) and area of sway parameters, respectively. In addition, a group{*} condition interaction indicated that, only for patients with PD, the unipedal condition showed greater asymmetry in the mediolateral RMS and area of sway than the bipedal condition and the tandem condition showed greater asymmetry in the area of sway than the bipedal condition. Patients with PD exhibited greater asymmetry while performing tasks requiring postural control when compared to neurologically healthy individuals, especially for challenging tasks such as tandem and unipedal standing. (AU)

FAPESP's process: 13/00925-4 - Asymmetry in postural control in fallers and non-fallers elderly with Parkinson's disease in different static positions
Grantee:Victor Spiandor Beretta
Support Opportunities: Scholarships in Brazil - Scientific Initiation